# The mandatory Hello World program
# 
# the __FILE__ == ... construct is not really necessary
# you could simply call the say_hello function direcly... in fact
# this could have been as simple as a one-liner code
# puts "Hello World" and it still will do the trick
# .. all these is just in keeping with the tradition of a main() function

def say_hello
  puts "Hello World"
end

if __FILE__ == $PROGRAM_NAME
  say_hello
end
